Maiko Okamoto is a female medical intern who often tries to convince the protagonist from breaking the rules. Having a regard for law, she often clashes with Kuroo Hazama who tends to take over a surgery or treatment, despite being a med-student. She is shown as earnest and hardworking, trying to get help while the hospital is understaffed from an accident on the first episode, this is while most of the other similar interns are refusing to help, going on a demo instead.